#! /usr/bin/env python

import unittest
from operator import add, sub

class MathTestCase(unittest.case.TestCase):
    def setUp(self):
        pass
    def tearDown(self):
        pass
    def testAdd(self):
        self.assertEqual(add(4, 5), 9)
    def testSub(self):
        self.assertEqual(sub(8, 6), 3)
    def suite():
        suite = unittest.TestSuite()
        suite.addTest(MathTestCase())
        return suite

if __name__ == "__main__":
    unittest.main()
